Heat dissipating cot for textile rolls



June 3, 1947. J: MAINQ HEAT DISSIPATING C OT FOR TEXTILE ROLLS FiledDec" 20', 1944 Inventor 19/ flea J fl/a bo.

Patented June 3, 1947 UNITED HEAT DISSIPATING COT FOR TEXTILE ROLLSAlfred J. Maine, New Bedford, Mass. Application December 20, 1944,Serial No. 568,988

4 Claims. (Cl. 19-143) This invention relates to an improved textileroll or roller such as is used in carding and spinning machinery intextile mills as well as in other industries requiring the processing oftextiles, for example, cotton, rayon, wool, or so-called mixes, theessential phase of the invention having to do with a decidedly improvedheat dissipating cot.

A textile roller such as is used in present day carding and spinningmachinery comprises a metal arbor, this having longitudinally spacedsleeve-like rubber or equivalent cots rigidly mounted thereon, theintermediate and end portions of the arbor being of cylindricalcross-sectional form and providing journals receptive in the machinebearings provided therefor.

So far as I know the regular and synthetic rubber cots now utilized havetheir tractive surfaces sufliciently pliable and resilient toeffectively accommodate the roving. However, after a few weeks running,the surface of a cot becomes impacted and undesirably glazed. Thus, thesurface loses its important requirements of resilience and frictionaltraction. Such a condition fails to allow the cot to carry short fibersor what is known to the trade as clearer waste to the top clearer inorder to gather properly.

Instead, these short fibers gather at the outside edge of the topclearer and hang down over the roll. This has produced a condition whichis known to the trade as eyebrowing. As the size of the eyebrowincreases it will finally touch the yarn, and bunches of short fiberswill be pulled into the yarn to impair same.

. The purpose and, therefore, the principal object of the presentinvention has to do with the provision of cots which are such as toeliminate, to a reasonable degree, objectionable "eyebrowing.Conventional cots are of solid rubber or equivalent stock and are,therefore, impervious to the passage of air. My improved cots, on theother hand, are of such construction as to be porous, the presence ofthe pores functioning sufliciently to aerate the cots that theydissipate heat generated in the rotating arbor and, as a result thereof,minimize the likelihood of impacting and glazing.

Other features and advantages will become more readily apparent from thefollowing description and the accompanying illustrative drawing.

In the drawing, wherein like numerals are employed to designate likeparts throughout the views:

Figure 1 is a plan or elevational view of a textile roller having theimproved porous cots mounted thereon.

Figure 2 is a cross section on the line 2-2 of Figure 1.

Referring to the drawings by distinguishing reference numerals, thearbor, as a unit, is denoted by the numeral 5, the same beingcharacterized by the customary central journal 6 and projecting endjournals 1. The improved cots 8 are mounted on the flanged hub portionsat points between said journals 6 and 1.

Each cot is the same in construction and the description of one willsuffice for both. To this end, it is to be pointed out that the cot isof customary cylindrical sleeve-like form and of conventional dimensionsand material. The principal difference is that it is porous asdistinguished from the customary solid and impervious to air types. nowutilized. In keeping with my ideas the pores, these being denoted at 9may be, if desired, mechanically formed by Dunc turing and they extendentirely through the sleeve. They thus form a myriad of tiny air holessuch as are sufficient to dissipate objectionable heat generated by andin the metal arbor. By preference, these pores are arranged in rows withthe rows spiraling around the circumference.

It is not to be inferred from the preceding statement that a, mechanicalpuncturing procedure is the only mode of construction. It is within thepurview of the invention, obviously, to originally manufacture the cotin" any one of different methods to render same porous throughout or tootherwise mold and construct the needed multiplicity of air passages.The cot is thus rention of air at least to an extent suflicient torelease the heat waves radiated and to thus dissipate the heat.

The perforations or pores will render the cot sufliciently resilientover a prolonged. period of time and will maintain it in a substantiallynew state for this extra time period; and, while in use, it virtuallyeliminates eyebrowing."

By way of summation, it will be seen that the essence of the inventionhas to do 1) with an improved textile roller for use in carding andspinning machinery and (2) an improved rubber cot. The finished rollercomprises an elongated arbor, having intermediate and end journals and apair of longitudinally spaced cots, which are mounted substantiallyrigidly on the arbor at customary points between the stated journals,said cots having perforations, the perforations extending radiallythroughout the complete thickness of the cots and. from the surroundedarbor surfaces through the outer surfaces of said cots, this in order todissipate heat, such as is generated in and around the arbor and cotsand to, at thesame time, minimize impacting and glazing of theouter'peripheral and tractive sur-- faces. of said cots. As to thesecond aspect, the invention also has reference to the sub-combination,that is the cot by itself which is formed with perforations, amultiplicity of same, and said perforations extending completely throughthe thickness to provide aeration holes.

A careful consideration of the foregoing description in conjunction withthe invention as illustrated in the drawings will enable the reader totual practice so long as no departure is made from the invention asclaimed.

I claim:

1. A textile roller comprising an arbor and a sleeve-like cot or rubberor rubber-like material mounted on said arbor in surroundingrelationship thereto. said cot having numerous heat dissipating openingsextending from its inner, arborcontacting face to its outer face.

2. A textile roller comprising an arbor and a sleeve-like cot of rubberor rubber-like material mounted on said arbor in surroundingrelationship thereto, said cot having numerous heat dissipating openingsarranged in rows extending 2 helically relative to the cot and extendingfrom Number Name Date 20 1,988,491 Hazell Jan. 22, 1935 2,304,657Rockoff Dec. 8, 1942 2,332,514 I-Ioltzclaw Oct. 26, 1943 FOREIGN PATENTS5 Number Country Date 404,051 Great Britain Jan. 11, 1934 its inner.arbor-contacting face to its outer face. 3. A textile roller cot orrubber or rubber-like material and of sleeve-like form having numerousheat dissipating openings extending from its inner, arbor contactingface to its outer face.

4. A textile roller cot of rubber or rubber-like material and ofsleeve-like form having numerous heat dissipating openings extendingfrom its inner, arbor contacting face to its outer face, and arranged inrows extending helically relative to the cot.

ALFRED J. MAINO.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

